5004558 435953 174566 VRO Conversion Fuel Pump for Johnson Evinrude OMC BRP | JLM Marine

VRO Conversion Fuel Pump for Johnson Evinrude OMC BRP – Fits V4, V6 & V8 Models

This VRO Conversion Fuel Pump is designed for Johnson and Evinrude marine engines ranging from 120 HP to 300 HP, including V4 Looper, V6, and V8 models with a malfunctioning VRO system. It provides a reliable fuel-only pumping solution, eliminating the need for the original VRO oil injection system.

This conversion pump directly replaces OEM part numbers 5004558, 435953, and 174566, and is compatible with OMC and BRP engines. By converting to this fuel pump, you bypass the problematic VRO system and regain dependable fuel delivery.

• Fuel-only pump – bypasses VRO oil injection; requires premix fuel
• Premix requirement: 50:1 ratio (1 pint oil to 6 gallons gas)
• Uses existing VRO mounting bracket (modification required)

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here's a guide to help you identify your engine's serial/model: Johnson/Evinrude Serial Number Guide.

Technical Specifications

Package Contents

This VRO conversion kit includes:

• 1 × Fuel Pump (fuel-only, no oil injection)
• Several sections of fuel line
• Zip ties for installation convenience

Note: Mounting bracket is NOT included – you must use your existing VRO bracket with required modifications.

Installation Guide

1. Disconnect the battery and relieve fuel system pressure before beginning work.
2. Remove the old VRO pump from the engine, taking care to label and disconnect all fuel and oil lines.
3. Modify your existing VRO mounting bracket as needed to accommodate the new fuel-only pump (consult installation diagrams if available).
4. Mount the new fuel pump to the modified bracket, ensuring secure and stable fitment.
5. Connect the fuel lines using the supplied sections of fuel line, routing them cleanly and securing with the provided zip ties.
6. Cap or remove the oil injection lines since this pump does not supply oil; ensure no open lines remain.
7. Prepare premixed fuel at a 50:1 ratio (1 pint of 2-stroke oil to 6 gallons of gasoline) in your fuel tank.
8. Prime the fuel system by manually pumping the primer bulb until fuel flows freely and all air is purged.
9. Reconnect the battery and perform a visual inspection for leaks or loose fittings.
10. Start the engine and allow it to idle, checking for smooth operation and proper fuel delivery.
11. Test at varying throttle positions to confirm consistent performance under load.
12. Monitor the engine during the first few outings to ensure no fuel starvation or other issues arise.

Professional installation is recommended if you are unfamiliar with fuel system modifications.

Troubleshooting & FAQ

Q: How do I confirm this fuel pump fits my engine?
A: Cross-reference your engine's model and horsepower with the compatibility table above. Verify your current VRO part number matches 5004558, 435953, 174566, or 0438400. If your engine is listed and the part number matches, this pump will fit.

Q: Do I still need to mix oil with my fuel after installing this pump?
A: Yes. This is a fuel-only pump and does not inject oil. You must premix 2-stroke oil into your fuel tank at a 50:1 ratio (1 pint of oil per 6 gallons of gasoline) before each refuel.

Q: Will I need to modify my existing VRO bracket?
A: Yes. The mounting bracket shown in some diagrams is not included; you must use your original VRO bracket and modify it as required to fit this fuel pump securely.

Q: What are the signs that my VRO pump has failed?
A: Common symptoms include engine stalling, rough idling, loss of power, fuel starvation at high RPM, or oil-related alarms. Converting to this fuel-only pump eliminates VRO-related failures.

Q: How often should I replace this fuel pump?
A: There is no fixed interval; inspect the pump annually for leaks, cracks, or performance issues. Replace it if you notice fuel delivery problems, unusual noises, or visible wear.

Q: Is this an OEM part or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.